I don't know mate, but when the STINK of urine still lingers and permeates the whole restaurant the next morning, you don't want them to have you're number :shock:
any job may be tempting in slow times, but I'd think long and hard about this one.
I personally have never been in your position, but I have had my kids wanting to play in those areas and declining due to that urine smell... introducing water, heat etc is only going to make it worse.
a couple of things to consider...
WHY are they getting it cleaned? (Visual, odour, accidents?)
As Rick said, what are the manufacturers specs for cleaning?
If that fails, who's holding the baby?
If it fails to meet their standard, will you still be paid?
If it's a 24hr place, what Health and Safety concerns does that raise for you/your staff?
Not saying don't touch it, just do a bit of due diligence first... and all the best.
John