Were there any other treatments explained to you apart from those you just mentioned? Did you only get "heat friction" today or was the time also spent in taking an assessment of your movemant, pain, pain behaviour and so-on. (now I know I'm ancient and I know what frictions are but heat friction?) Any movement advice, explanation. do's and don'ts? Was the 2.5 cm gap discussed? When will taping be a factor to reckon with? Have you any idea what exactly was written by the doctor on your referral to physiotherapy and the exact aims you and the physio have in the treatment? How often are you going to get treatment and what improvement is the physio aiming at?
Don't panic at the questions, I don't expect all of them to be answered after one session but it would be nice to have an idea. Physios should, and maybe this one has, inform the patient about what he's doing and why. Physiobobs referral to "non united problem" is what I am thinking about. I doubt if Ultrasound and heat friction will help the gap but may assist pain and local metabolism/healing problems in soft tissue. Keep us informed.