I don't think the market will care much (or not for long) if they slightly miss guidance, but any good news about Model 3 being imminent will have a definite positive effect on the stock.
Typically market has shrugged off past guidance misses. However it was always production problems keeping Tesla from meeting guidance, but this quarter is probably the first one when Tesla transitions from production constraint to demand constraint (for S&X). With the delivery numbers, Q2 financials and M3 ramp coming up, I'm not sure how the stock will respond. I just keep reminding myself I'm in it for the long haul and enjoy the ride...