Carb,
If your husband has been doing the kegel exercises multiple times a day he should be seeing some improvement versus day one. If he is doing the kegels daily and often and is not seeing improvement, he may have the same issue that Mikeg stated in an earlier post in this thread. That is, his pelvic floor muscles may be too tight and he needs to learn different exercises.
When I first went back to work I wore the depends pads
www.us.depend.com/Incontinence-Products/ProductDetailMaleGuards.aspx
in my briefs. I have no idea what your husband does for a living but it seems that should hide any incontinence issues he is having. If the pads are not enough, then using the depends briefs in addition to the pad should do it.
Of course if one's job was a Chippendale's dancer, that probably wouldn't work out to well.
There are a lot of people out there who are incontinent due to other reasons and they wear protection while at work.
When he goes to the doctor, he should tell him how often he is doing kegels, how much urine output he has when he goes on schedule, and how much leakage he is having between scheduled trips to the toilet.
I think that "normal" is a couple to a few months to get daytime continence but I think I recall seeing that 5-10% of male neobladder patients don't acheive continence during the day.
A "last resort" may be for him to wear condom catheters with a leg bag but I think it would truly be last resort. If he knows he has the catheter, it may further slow down acheiving continence.
Hope things work out soon.
Mike