2013 A6 2.0 Quattro.

it has been extremely cold, I believe fluid was frozen as I could hear the pump but nothing was coming out. Drove for about 2 hours and figured it would unfreeze it. Tried to spray and nothing, now the pump isn't even making a nice, felt in reservoir and there was a little ice in it but worried I burned up pump. Audi dealership said pump was probably just frozen also, does that happen?

question is should I heat it up with heat lamp and indoors or just not waste the time and effort and take it in, fuse is not blown.

Thanks for any help, first time forum user.

rybrand