Personaly, I think them whole A/G AFIS situation is pretty screwed up.
There is either an info service or an advice service ( seeing as the pilot is ultimately responsible ).
In the circuit of a lisenced field, If the tower says to do something & if airmanship & the law allows, it should be done. Easy really!...
...or, they tell you the weather & the runway, & for anyhting else, look out of the window!
There is too much of a grey area that we all fall into.
Ultimately, remember that you, as the pilot in charge, are that - the pilot in charge.
Take care!
BtB